//题目：画图，学用 circle 画圆形
#include "graphics.h"
main()
{
    int driver,mode,i;
    float j=1,k=1;
    driver=VGA;mode=VGAHI;
    initgraph(&driver,&mode,"");
    setbkcolor(YELLOW);
    for(i=0;i<=25;i++)
    {
        setcolor(8);
        circle(310,250,k);
        k=k+j;
        j=j+0.3;
    }
}
